315378040

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{81283}}^1$

素因数の和:81391

約数の個数: 32

約数和(自身を含む): 716924880

約数和(自身を除く): 401546840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 194, 388, 485, 776, 970, 1940, 3880, 81283, 162566, 325132, 406415, 650264, 812830, 1625660, 3251320, 7884451, 15768902, 31537804, 39422255, 63075608, 78844510, 157689020, 315378040]

約数ペア:

[(1, 315378040), (2, 157689020), (4, 78844510), (5, 63075608), (8, 39422255), (10, 31537804), (20, 15768902), (40, 7884451), (97, 3251320), (194, 1625660), (388, 812830), (485, 650264), (776, 406415), (970, 325132), (1940, 162566), (3880, 81283)]